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Roshan alone can build a fence in 20 days. He starts the work and leaves it after 5 days. Rameshmesh did the whole work alone?does the remaining work in 12 days. How long will it take if RaHow long will it take if Roshan and Ramesh work together from the beginning |
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Answer» One day work of roshan 1/20therefore work done by him 1/20*5=1/4remaining work=1-1/4=3/4let ramesh one day work be 1/xtherefore 1/x*12=3/41/x=3/48=1/16ramesh one day work is 1/16ramesh can complete the work in 16 daysnow if they work togather then their one day work=1/20+1/16=4+5/80=9/80implies 80/9 days=8whole8/9 days hit like if you find it useful |
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